Thickness, mm | Width, mm | ||||||||
16 | 75 | 100 | 125 | 150 | - | - | - | - | - |
19 | 75 | 100 | 125 | 150 | 175 | - | - | - | - |
22 | 75 | 100 | 125 | 150 | 175 | 200 | 225 | - | - |
25 | 75 | 100 | 125 | 150 | 175 | 200 | 225 | 250 | 275 |
32 | 75 | 100 | 125 | 150 | 175 | 200 | 225 | 250 | 275 |
40 | 75 | 100 | 125 | 150 | 175 | 200 | 225 | 250 | 275 |
44 | 75 | 100 | 125 | 150 | 175 | 200 | 225 | 250 | 275 |
50 | 75 | 100 | 125 | 150 | 175 | 200 | 225 | 250 | 275 |
60 | 75 | 100 | 125 | 150 | 175 | 200 | 225 | 250 | 275 |
75 | 75 | 100 | 125 | 150 | 175 | 200 | 225 | 250 | 275 |
100 | - | 100 | 125 | 150 | 175 | 200 | 225 | 250 | 275 |
125 | - | - | 125 | 150 | 175 | 200 | 225 | 250 | - |
150 | - | - | - | 150 | 175 | 200 | 225 | 250 | - |
175 | - | - | - | - | 175 | 200 | 225 | 250 | - |
200 | - | - | - | - | - | 200 | 225 | 250 | - |
250 | - | - | - | - | - | - | - | 250 | - |
No. | Section size, mm | Length, mm | Quantity in 1 cube, pcs | Area that can be sewn using 1 cube, m2 | 1 | 16x75 | 6000 | 138,89 | 62,50 | 2 | 16x100 | 6000 | 104,17 | 62,50 | 3 | 16x125 | 6000 | 83,33 | 62,50 | 4 | 16x150 | 6000 | 69,44 | 62,50 | 5 | 19x75 | 6000 | 116,96 | 52,63 | 6 | 19x100 | 6000 | 87,72 | 52,63 | 7 | 19x125 | 6000 | 70,18 | 52,63 | 8 | 19x150 | 6000 | 58,48 | 52,63 | 9 | 19x175 | 6000 | 50,13 | 52,63 | 10 | 22x75 | 6000 | 101,01 | 45,45 | 11 | 22x100 | 6000 | 75,76 | 45,45 | 12 | 22x125 | 6000 | 60,61 | 45,45 | 13 | 22x150 | 6000 | 50,51 | 45,45 | 14 | 22x175 | 6000 | 43,29 | 45,45 | 15 | 22x200 | 6000 | 37,88 | 45,45 | 16 | 22x225 | 6000 | 33,67 | 45,45 | 17 | 25x75 | 6000 | 88,89 | 40,00 | 18 | 25x100 | 6000 | 66,67 | 40,00 | 19 | 25x125 | 6000 | 53,33 | 40,00 | 20 | 25x150 | 6000 | 44,44 | 40,00 | 21 | 25x175 | 6000 | 38,10 | 40,00 | 22 | 25x200 | 6000 | 33,33 | 40,00 | 23 | 25x225 | 6000 | 29,63 | 40,00 | 24 | 25x250 | 6000 | 26,67 | 40,00 | 25 | 25x275 | 6000 | 24,24 | 40,00 | 26 | 32x75 | 6000 | 69,44 | 31,25 | 27 | 32x100 | 6000 | 52,08 | 31,25 | 28 | 32x125 | 6000 | 41,67 | 31,25 | 29 | 32x150 | 6000 | 34,72 | 31,25 | 30 | 32x175 | 6000 | 29,76 | 31,25 | 31 | 32x200 | 6000 | 26,04 | 31,25 | 32 | 32x225 | 6000 | 23,15 | 31,25 | 33 | 32x250 | 6000 | 20,83 | 31,25 | 34 | 32x275 | 6000 | 18,94 | 31,25 | 35 | 40x75 | 6000 | 55,56 | 25,00 | 36 | 40x100 | 6000 | 41,67 | 25,00 | 37 | 40x125 | 6000 | 33,33 | 25,00 | 38 | 40x150 | 6000 | 27,78 | 25,00 | 39 | 40x175 | 6000 | 23,81 | 25,00 | 40 | 40x200 | 6000 | 20,83 | 25,00 | 41 | 40x225 | 6000 | 18,52 | 25,00 | 42 | 40x250 | 6000 | 16,67 | 25,00 | 43 | 40x275 | 6000 | 15,15 | 25,00 | 44 | 44x75 | 6000 | 50,51 | 22,73 | 45 | 44x100 | 6000 | 37,88 | 22,73 | 46 | 44x125 | 6000 | 30,30 | 22,73 | 47 | 44x150 | 6000 | 25,25 | 22,73 | 48 | 44x175 | 6000 | 21,65 | 22,73 | 49 | 44x200 | 6000 | 18,94 | 22,73 | 50 | 44x225 | 6000 | 16,84 | 22,73 | 51 | 44x250 | 6000 | 15,15 | 22,73 | 52 | 44x275 | 6000 | 13,77 | 22,73 | 53 | 50x75 | 6000 | 44,44 | 20,00 | 54 | 50x100 | 6000 | 33,33 | 20,00 | 55 | 50x125 | 6000 | 26,67 | 20,00 | 56 | 50x150 | 6000 | 22,22 | 20,00 | 57 | 50x175 | 6000 | 19,05 | 20,00 | 58 | 50x200 | 6000 | 16,67 | 20,00 | 59 | 50x225 | 6000 | 14,81 | 20,00 | 60 | 50x250 | 6000 | 13,33 | 20,00 | 61 | 50x275 | 6000 | 12,12 | 20,00 | 62 | 60x75 | 6000 | 37,04 | 16,67 | 63 | 60x100 | 6000 | 27,78 | 16,67 | 64 | 60x125 | 6000 | 22,22 | 16,67 | 65 | 60x150 | 6000 | 18,52 | 16,67 | 66 | 60x175 | 6000 | 15,87 | 16,67 | 67 | 60x200 | 6000 | 13,89 | 16,67 | 68 | 60x225 | 6000 | 12,35 | 16,67 | 69 | 60x250 | 6000 | 11,11 | 16,67 | 70 | 60x275 | 6000 | 10,10 | 16,67 | 71 | 75x75 | 6000 | 29,63 | 13,33 | 72 | 75x100 | 6000 | 22,22 | 13,33 | 73 | 75x125 | 6000 | 17,78 | 13,33 | 74 | 75x150 | 6000 | 14,81 | 13,33 | 75 | 75x175 | 6000 | 12,70 | 13,33 | 76 | 75x200 | 6000 | 11,11 | 13,33 | 77 | 75x225 | 6000 | 9,88 | 13,33 | 78 | 75x250 | 6000 | 8,89 | 13,33 | 79 | 75x275 | 6000 | 8,08 | 13,33 | 80 | 100x100 | 6000 | 16,67 | 10,00 | 81 | 100x125 | 6000 | 13,33 | 10,00 | 82 | 100x150 | 6000 | 11,11 | 10,00 | 83 | 100x175 | 6000 | 9,52 | 10,00 | 84 | 100x200 | 6000 | 8,33 | 10,00 | 85 | 100x225 | 6000 | 7,41 | 10,00 | 86 | 100x250 | 6000 | 6,67 | 10,00 | 87 | 100x275 | 6000 | 6,06 | 10,00 | 88 | 125x125 | 6000 | 10,67 | 8,00 | 89 | 125x150 | 6000 | 8,89 | 8,00 | 90 | 125x175 | 6000 | 7,62 | 8,00 | 91 | 125x200 | 6000 | 6,67 | 8,00 | 92 | 125x225 | 6000 | 5,93 | 8,00 | 93 | 125x250 | 6000 | 5,33 | 8,00 | 94 | 150x150 | 6000 | 7,41 | 6,67 | 95 | 150x175 | 6000 | 6,35 | 6,67 | 96 | 150x200 | 6000 | 5,56 | 6,67 | 97 | 150x225 | 6000 | 4,94 | 6,67 | 98 | 150x250 | 6000 | 4,44 | 6,67 | 99 | 175x175 | 6000 | 5,44 | 5,71 | 100 | 175x200 | 6000 | 4,76 | 5,71 | 101 | 175x225 | 6000 | 4,23 | 5,71 | 102 | 175x250 | 6000 | 3,81 | 5,71 | 103 | 200x200 | 6000 | 4,17 | 5,00 | 104 | 200x225 | 6000 | 3,70 | 5,00 | 105 | 200x250 | 6000 | 3,33 | 5,00 | 106 | 250x250 | 6000 | 2,67 | 4,00 |
Getting ready for construction frame house, erecting the roof and assembling the crowns of the log house, the developer has to purchase timber.
This material is used for the manufacture of various wooden structures, so its range includes dozens of items. To eliminate errors, you need to determine as accurately as possible how much timber is in a cubic meter.
The “mathematical model” of this operation is simple. To calculate the volume of any rectangular object, its length is multiplied by its width and height. However, in practice, when purchasing large quantity lumber of different lengths and cross-sections, you can get confused and overpay a considerable amount.
In this article we will talk about the important nuances of calculating the volume of lumber and provide easy-to-use “cheat sheets” for translation linear meters lumber into cubes.
Considering high cost edged timber, its purchase must be taken responsibly. Sellers, as a rule, use the price per 1 m3. Customers at checkout rafter system roofs, wall frames, floor beams and floors receive linear meters. Additional confusion is caused by production length standards, which range from 3 to 6 meters (0.5 meter increments).
It’s not difficult to sort everything out in this matter. Let's say that for construction you need a beam with a cross-section of 100x50 mm, and its total length is 100 linear meters (l/m). To calculate the volume of edged wood, you need to convert the cross-sectional area from millimeters to square meters and then multiply them by the length: 0.1x0.05x100 = 0.50 m3. We get the price of a given amount of timber by multiplying its volume by the cost of one cubic meter.
And here’s another equally important question: how to control the amount of lumber that the seller gives you? Here you need to take into account not only the cross-section, but also the length of the material.
Let's say that we need a beam 4 meters long (total length 100 l/m). In this case, the volume of one piece will be equal to: 0.1x0.05x4 = 0.02 m3. Dividing the purchased amount of material (0.5 m3) by the volume of one bar (0.02 m3) we get exactly 25 pieces.
In practice, round numbers are rare, so the required amount of timber is most often a fraction. We will not give to the seller that part of the lumber that remains after the comma. It’s better to pay him up to a whole number of beams.
Let's look at an example. 63 linear meters of timber are purchased (section 100x180 mm, length 6 meters). We calculate the purchase volume: 63x0.1x0.18 = 1.134 m3. We divide it by the volume of one beam (0.1x0.18x6 m/p = 0.108 m3). We get 1.134/0.108 = 10.5 pieces. The seller will not cut half of the timber for us. Therefore, when calculating, you need to pay him up to the whole amount and take 11 beams.
With a profiled beam, the cross-section of which has a complex shape, proceed in the same way as with a regular one. To determine the cross-sectional area of this material its total height (the distance from the bottom edge with the groove to the top mark of the tenon) is multiplied by the width.
Counting the amount of timber in the warehouse in 1 m3, take a tape measure and measure the actual cross-section of the purchased material. It may turn out that instead of the 100x200 or 150x150 mm promised by the seller, they delivered more thin material. Even a 1 centimeter reduction in the transverse size of a saw log results in significant losses for the buyer.
Another important nuance– technological deviation of beam length. It can reach 5-7 centimeters, since the ends of the logs are not cut off during processing. Remember that the seller has no right to add to total length those extra centimeters.
Using a calculator to count how many pieces of timber are in a cube is not always convenient, especially when purchasing a large batch. The seller's data can be easily controlled using ready-made tables. Here, for standard saw log sizes, information is provided on the volume of 1 beam and the number of pieces per 1 m3.
Table for calculating edged timber 6 meters long
Dimensions (mm) | Volume of 1 piece (m3) | Pieces per 1 m3 |
100x100x6000 | 0,06 | 16 |
100x150x6000 | 0,09 | 11 |
100x180x6000 | 0,108 | 9 |
100x200x6000 | 0,12 | 8 |
150x150x6000 | 0,135 | 7 |
150x180x6000 | 0,162 | 6 |
150x200x6000 | 0,18 | 5,5 |
180x180x6000 | 0,1944 | 5 |
180x200x6000 | 0,216 | 4,5 |
200x200x6000 | 0,24 | 4 |
250x200x6000 | 0,3 | 3 |
This table can also be used when purchasing 3 meter timber. To do this, the volume of 1 piece must be reduced by half, and the amount of material in one cube must be multiplied by 2.
Let us recall that timber, by definition, is lumber with a thickness and width of 100 mm or more. Therefore, we deliberately did not include sizes in the table. wooden blanks smaller cross-section to maintain formal accuracy.
Let's look at the data on the volume and number of boards of common sizes in a separate table:
Dimensions (mm) | Volume of 1 piece (m3) | Pieces per 1 m3 |
25x100x6000 | 0,015 | 66,6 |
25x150x6000 | 0,0225 | 44,4 |
25x200x6000 | 0,03 | 33,3 |
40x100x6000 | 0,024 | 41,6 |
40x150x6000 | 0,036 | 27,7 |
40x200x6000 | 0,048 | 20,8 |
50x50x6000 | 0,015 | 66,6 |
50x100x6000 | 0,03 | 33,3 |
50x150x6000 | 0,045 | 22,2 |
50x200x6000 | 0,06 | 16,6 |
50x250x6000 | 0,075 | 13,3 |
To calculate the volume and quantity of 4-meter timber, you can use the following cheat sheet:
Dimensions (mm) | Volume of 1 piece (m3) | Pieces per 1 m3 |
100x100x4000 | 0,04 | 25 |
100x150x4000 | 0,06 | 16,66 |
100x180x4000 | 0,072 | 13,88 |
100x200x4000 | 0,08 | 12,5 |
150x150x4000 | 0,09 | 11,11 |
150x180x4000 | 0,108 | 9,26 |
150x200x4000 | 0,12 | 8,33 |
180x180x4000 | 0,13 | 7,69 |
180x200x4000 | 0,144 | 6,94 |
200x200x4000 | 0,16 | 6,25 |
250x200x4000 | 0,2 | 5 |
As can be seen from the table, almost the entire range of beams here is fractional. Therefore, for an economical purchase, you should use our advice on paying the seller up to the whole amount of timber.
How to do this practically? Let's give an example. Let's say that we bought one cubic meter of 4-meter timber with a cross-section of 100x180 mm (according to the table, it turns out to be 13.88 pieces). The price of 1m3 is 6500 rubles. Up to 14 pieces of beams we need to pay an additional 14-13.88 = 0.12. The volume of this “piece” is (0.12 x 4 meters = 0.48 m) x 0.1 x 0.18 m = 0.00864 m3. We multiply it by the price of 1 m3 and get 0.00864 m3 x 6500 rubles. = 56.15 rub.
Remember that the purchased volume of bars must include a reserve (cutting losses during operation). Therefore, the result obtained in the process of theoretical calculation of the roof rafter system or other wooden structure, you need to multiply by a factor of 1.3. After this adjustment, you can begin settlements with the seller.
In addition to determining the volume and price of the purchased material, you need to know the weight of 1 m3 of timber in order to order transport of the appropriate carrying capacity.
The weight of a cubic meter of timber depends on the type of wood and its moisture content. The approximate weight of 1 m3 of dry pine is 510 kg (wet - 890 kg).
The average weight of one cube of dry spruce bars is 450 kg (wet - 790 kg).
The weight of dried oak wood is in the range from 700 to 800 kg/m3, and wet (freshly cut) – from 980 to 1030 kg/m3.
Dry larch timber weighs 650 kg/m3. Freshly cut material of this type of wood weighs 840 kg/m3.
To simplify the calculation, we have prepared a summary table for you. The tables below provide data on the volume of one beam and how many pieces of timber of different sizes are in 1 cube. To make you feel comfortable.
Dimensions , mm | Volume of boards in 1 m 3 | Number of boards per m3 |
100x100x6000 | 0.06 m 3 | 16 pcs. |
100x150x6000 | 0.09 m 3 | 11 pcs. |
150x150x6000 | 0.135 m 3 | 7 pcs. |
100x180x6000 | 0.108 m 3 | 9 pcs. |
150x180x6000 | 0.162 m 3 | 6 pcs. |
180x180x6000 | 0.1944 m 3 | 5 pieces. |
100x200x6000 | 0.12 m 3 | 8 pcs. |
150x200x6000 | 0.18 m 3 | 5 pieces. |
180x200x6000 | 0.216 m 3 | 4 things. |
200x200x6000 | 0.24 m 3 | 4 things. |
250x200x6000 | 0.3 m 3 | 3 pcs. |
250x250x6000 | 0.375 m 3 | 2 pcs. |
250x300x6000 | 0.45 m 3 | 2 pcs. |
300x300x6000 | 0.54 m 3 | 1 PC. |
We offer a simple calculation so that you do not get confused with the question of how to find out how much timber is in a cube. These calculation options are suitable if you know the dimensions of the timber. For example, let's take a beam 260 x 260 x 6,000 mm (6 meters). The same can be done for timber measuring 3 meters, 4 meters, 5 meters.
Formula for calculating the volume of timber:
100mm · 100mm · 6000 mm = 0.1m · 0.1m · 6m = 0.06 m3
Formula for calculating timber in pieces:
Beam length - 6 meters
1m3 / 0.06m3 = 16 pcs/m3
Difficult? Apparently not! But if the calculation is difficult for you, just use our table. The table contains calculations for all known sizes of timber, which are given in GOST 8486-86.
There are two reasons for this:
When building a frame house, the main material is wooden beams. It is needed not only for creating the frame of the house, but also for building a roof, when installing the crowns of a log house, and arranging internal partitions and other house structures. Because of wide range uses of this wood construction material has dozens and hundreds of positions regulating the size of the product. Knowing the exact dimensions of one unit, you can, without going into complex calculations, use simple formulas calculate how many pieces of 6-meter timber fit in 1 m3 - to draw up estimates and optimize logistics operations for the delivery and storage of lumber at the construction site.
Volume of any physical object rectangular shape- this is the result of multiplying the length, width and height of the rectangle, in our case - wooden beam. Volume V = a x b x c, where the designations are: a – length, b – width, and c – height of the beam. For example, a product 6 meters long, 10 cm wide and 10 cm high will have a volume of 0.06 m 3. But this is an ideal mathematical formula, and in practice, products in one batch may have different sizes, which is allowed by the standards, but complicates the calculation of the volume of lumber.
Edged or profiled timber costs much more than regular timber, so the accuracy of the calculations is crucial - you will have to pay out of your wallet. The traditional measurement system when purchasing lumber is a cubic meter, but for timber on rafters, wall frame, floor beams and wood for flooring, it is more convenient to use linear meters. Also, the peculiarities of production in the woodworking industry allow for some variation in dimensions, in particular length, which can vary between 3-6 meters in increments of 50 cm.
Various units measurements and different approaches when calculating the required amount of timber, they can generate errors and inaccuracies, as well as cause a general misunderstanding of the situation - how to convert given units into others.
IN individual construction Every ruble counts, so ordering, for example, 4 m 3 of edged or profiled timber, if you need 3.8 m 3, is uneconomical.
Example: when purchasing 52 lumber with a cross section of 100 x 180 mm and a length of 6 meters, the total volume of the timber will be equal to: 52 x 0.1 x 0.18 = 0.936 m 3. You can find out the number of pieces in this volume like this: divide the total volume by the volume of one unit. Let's find out the volume of one product: 0.1 x 0.18 x 6 m/p = 0.108 m3. Last calculation: 0.936 / 0.108 = 8.666 units. Since no one will cut lumber in the store, it is easier to pay this small difference for one unit than to buy the entire lot with the difference in price multiplied by the number of pieces in the lot.
Profiled timber, although of a more complex shape, is calculated using the same formulas. That is, to calculate the cross-sectional area of a profiled product, the height “c” must be multiplied by the width “b”. The height of the profiled beam is determined as the distance from the bottom surface, which has a groove, to the top point of the tenon.
When calculating the number of units of lumber in 1 m3, already when purchasing it, you need to measure the actual cross-section of any product with a tape measure to make sure that you do not have to overpay. A difference of even 0.5 cm is a fairly significant blow to the family budget.
There is such a production concept as technological deviation in length. This error can reach 4-6 cm for one unit, since the logs are not trimmed when sawing. Therefore, the seller should be reminded of this so that he does not add payment for a non-existent length of material when calculating the total amount. If, when building a frame house, you need to know how much 150x150 timber is in a cube, the table below will help you make quick and accurate calculations.
Number of units of profiled and edged timber in 1 cubic meter:
Width, height, length in m | Volume 1 pc. in m 3 | Units per 1m 3 |
0.10 x 0.10 x 6 | 0,06 | 16 |
0.10 x -0.15 x 6 | 0,09 | 11 |
0.15 x 0.15 x 6 | 0,135 | 7 |
0.1 x 0.18 x 6 | 0,108 | 9 |
0.15 x 0.18 x 6 | 0,162 | 6 |
0.18 x 0.18 x 6 | 0,1944 | 5 |
0.10 x 0.20 x 6 | 0,12 | 8 |
0.15 x 0.20 x 6 | 0,18 | 5 |
0.18 x 0.20 x 6 | 0,216 | 4 |
0.20 x 0.20 x 6 | 0,24 | 4 |
0.25 x 0.20 x 6 | 0,3 | 3 |
0.25 x 0.25 x 6 | 0,375 | 2 |
0.25 x 0.30 x 6 | 0,45 | 2 |
0.30 x 0.30 x 6 | 0,54 | 1 |
Find out how much timber is in a cube in the table below:
Width, height, length in m | Volume of one unit |
0.10 x 0.10 x 6 | 0,06 |
0.10 x -0.15 x 6 | 0,09 |
0.15 x 0.15 x 6 | 0,135 |
0.1 x 0.18 x 6 | 0,108 |
0.15 x 0.18 x 6 | 0,162 |
0.18 x 0.18 x 6 | 0,1944 |
0.10 x 0.20 x 6 | 0,12 |
0.15 x 0.20 x 6 | 0,18 |
0.18 x 0.20 x 6 | 0,216 |
0.20 x 0.20 x 6 | 0,24 |
0.25 x 0.20 x 6 | 0,3 |
0.25 x 0.25 x 6 | 0,375 |
0.25 x 0.30 x 6 | 0,45 |
0.30 x 0.30 x 6 | 0,54 |
Simplified formulas for calculating lumber 0.15 x 0.15 x 6 m:
The final and correct calculation implies that 12-15% is added to the result.
A few simple formulas will help the developer do without intermediaries in calculating the quantity and volume of wood for building a house:
Calculation features:
Beam 150x100 mm is a popular material in construction. It is valued for its strength, durability, moisture resistance and reasonable cost. It retains heat well, does not allow sound to pass through, and does not shrink. The timber is used on many construction work Oh.
This material has aesthetic appearance, easy to use, and, most importantly, environmentally friendly. The building is easy to build on your own.
It is made from:
Thanks to the 150x100 mm cross-section, it will be possible to save on construction costs. The beams are laid on top of each other with 100 mm sides, as a result the walls are erected quickly and inexpensively. For summer house just right. Residential buildings and cottages are built by laying timber with a side of 150 mm.
150x100 timber is cut from two types of wood:
Manufacturers control the moisture content of the timber, monitor the quality of the surface, which should be smooth, without damage, knots or other defects. This allows you to increase the service life of the wood.
When selling timber, it is traditionally measured in cubic meters. This convenient way to calculate required quantity material for construction work. A person with experience can easily determine how much timber is in a cube, but there are buyers who do not know how to count. As a result, there is a risk of fraud on the part of the seller.
There is a simple formula:
1/(0.15×0.1×D)= pcs.
If you need one cubic meter of 150x100 timber 6 meters long, then we substitute this data into the formula:
1/(0.15×0.1×6)= 11 pcs.
Thus, the calculation showed that in one cubic meter there are 11 six-meter bars.
Why do you need to know how much timber is in one cube?
The ability to make calculations will help you determine in advance the amount of material and draw up the necessary budget for construction. During the purchase, you need to carefully inspect each timber for the presence of defects. This is a popular material; some manufacturers make it from poor wood and sell it at a low price. It is important to remember that high-quality timber will last at least 50-70 years, so you should not save.